Here are six of the key points that Judge Masipa will look at in reaching her verdict.

1. Screams or crying

Olympic and Paralympic track star Oscar Pistorius reacts during his trial at North Gauteng High Court in Pretoria

Neighbours said that they heard a woman screaming in fear the night that Reeva was shot dead.

Dr Johan Stipp and his wife Anette both said they heard a woman’s voice. Mrs Stipp said: “It was moments after the shots I heard a lady screaming, terrified, terrified screaming. The screaming just continued. It did not stop.”

Another neighbour, Michelle Burger, said she heard “blood curdling screams” that she belonged to a woman.

However, Pistorius defence counsel Barry Roux says that Pistorius screams like a woman when he is distressed.

Did his mental health play a role?

A report said: “At the time of the alleged offences, the accused did not suffer from a mental disorder or mental defect that affected his ability to distinguish between the rightful or wrongful nature of his deeds.”

However it was acknowledged that he is ‘vulnerable to danger’ and at risk of suicide.

The first defence witness to be called was Dr Gerald Versfeld, the physician who has known Pistorius since he was a baby and amputated his legs.

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Speaking in a slow and deliberate tone, he recalled the details of the athlete’s ‘congenital deformities’ as a child and the difficult decision he had to make to remove his limbs.

He went into great detail about the discomfort Pistorius suffers while using his prosthetics, and the instability which he endures.

At one point he even asked the judge to come down from her seat to examine Pistorius and his stumps up close.

But his telling contribution came towards the end of his evidence when he concluded that Pistorius is ‘vulnerable’ and that he would have trouble turning and running from danger, unless he had a weapon.

He was also described as an “anxious individual” who was “hyper-vigilant” and the court heard that he suffers from agoraphobia, particularly when he isn’t wearing his prosthesis.